/* =============================================================================
   VOID DRIFTERS: universe site theme
   Served on voiddrifters.exodusnds.com. Load AFTER assets/exodus/universe-site.css.

   Cool slate and pale hull-plate grey, with ember orange for anything live:
   ship signage, not parchment. Part 1 sets the tokens every shared component
   reads. Part 2 themes those components and the chapter pages. Part 3 is the
   landing page, classes vd-. The printed book's palette is in
   shared/css/void-drifters.css.
   ============================================================================= */

/* ── Part 1: tokens ───────────────────────────────────────────────────────── */
:root {
  --vd-page:      #F0F4F7;
  --vd-page-alt:  #E4E9EF;
  --vd-slate:     #1A2634;
  --vd-slate-mid: #2D4254;
  --vd-deep:      #0E1620;
  --vd-steel:     #435D74;
  --vd-steel-lt:  #6A8BA8;
  --vd-ember:     #C2610A;
  --vd-ember-lt:  #E07A25;
  --vd-ember-dk:  #8A4208;
  --vd-danger:    #9B2519;
  --vd-muted:     #4A5F72;

  --us-bg:            var(--vd-slate);
  --us-surface:       var(--vd-page);
  --us-surface-alt:   var(--vd-page-alt);
  --us-text:          var(--vd-slate);
  --us-text-muted:    var(--vd-muted);
  --us-on-dark:       #F0F4F7;
  --us-on-dark-muted: rgba(240, 244, 247, 0.66);
  --us-accent:        var(--vd-ember-lt);
  --us-accent-2:      var(--vd-ember-dk);
  --us-border:        rgba(67, 93, 116, 0.42);
  --us-font-display:  'Barlow Condensed', 'Roboto Condensed', sans-serif;
  --us-font-label:    'Barlow Condensed', 'Roboto Condensed', sans-serif;
  --us-font-body:     'Crimson Pro', Georgia, serif;
  --us-radius:        3px;
}

/* ── Part 2: shared components and chapter pages ──────────────────────────── */
.us-nav-brand { font-weight: 700; font-size: 1.5rem; letter-spacing: 0.16em; text-transform: uppercase; }
/* Seven menu groups: keep them on one row at laptop widths. */
.us-nav { gap: 0.35rem 0.75rem; }
.us-menu { gap: 0.1rem 0.05rem; }
.us-menu-button { padding: 0.45rem 0.45rem; font-size: 0.92rem; letter-spacing: 0.07em; font-weight: 500; }
.us-menu-link { font-size: 1.02rem; letter-spacing: 0.02em; }
.us-menu-heading { font-size: 0.8rem; }

.us-page-title,
.us-band-title { font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase; }
.us-page-kicker { font-size: 0.92rem; letter-spacing: 0.3em; }
.us-band-title::before { content: ''; display: inline-block; width: 0.5em; height: 0.72em; margin-right: 0.45em; background: var(--vd-ember); }

.us-explore-card,
.us-kit-item,
.us-pager-link,
.us-toc-box { border-width: 1px; border-left: 4px solid var(--vd-steel); }
.us-explore-card:hover, .us-explore-card:focus-visible,
.us-kit-item:hover, .us-kit-item:focus-visible,
.us-pager-link:hover, .us-pager-link:focus-visible { border-left-color: var(--vd-ember); box-shadow: 0 8px 22px rgba(26, 38, 52, 0.18); }
.us-explore-card-title,
.us-pager-label { text-transform: uppercase; letter-spacing: 0.03em; font-weight: 600; }
.us-toc-box { font-size: 1rem; }

.us-prose h2,
.us-prose h3,
.us-prose h4 { font-weight: 600; letter-spacing: 0.02em; text-transform: uppercase; }
.us-prose h2 { font-size: 2rem; padding-bottom: 0.25rem; border-bottom: 3px solid var(--vd-slate); }
.us-prose h3 { font-size: 1.55rem; border-bottom: 2px solid var(--vd-ember); }
.us-prose h4 { font-size: 1.3rem; color: var(--vd-steel); }
.us-prose h5 { font-family: var(--us-font-display); font-size: 1.22rem; font-weight: 600; letter-spacing: 0.04em; color: var(--vd-ember-dk); }
.us-prose th { font-family: var(--us-font-label); font-size: 0.95rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #F0F4F7; background: var(--vd-slate); }
.us-prose tr:nth-child(even) td { background: var(--vd-page-alt); }
.us-prose .note { background: #fff; border: 1px solid var(--us-border); border-left: 5px solid var(--vd-ember); }
.us-prose .descriptive { border-left: 5px solid var(--vd-ember); }

.us-section-page h2,
.us-section-page h3 { font-weight: 600; text-transform: uppercase; letter-spacing: 0.02em; }
.us-section-page .universe-fact,
.us-section-page .universe-conceit,
.us-section-page .universe-info-panel,
.us-section-page .universe-touchstone,
.us-section-page .universe-pregen-card,
.us-section-page .universe-rule { background: #fff; border-width: 1px; border-left: 4px solid var(--vd-steel); }

/* ── Part 3: landing page ─────────────────────────────────────────────────── */
.vd-page { background: var(--vd-deep); color: #C9D5DF; font-family: var(--us-font-body); overflow-x: hidden; }
.vd-inner { max-width: 1040px; margin: 0 auto; padding: 0 28px; position: relative; }
.vd-eyebrow { display: block; margin-bottom: 0.9rem; font-family: var(--us-font-label); font-size: 0.95rem; font-weight: 500; letter-spacing: 0.34em; text-transform: uppercase; color: var(--vd-ember-lt); }
.vd-head { margin: 0 0 1.3rem; font-family: var(--us-font-display); font-size: clamp(2rem, 5.4vw, 3.4rem); font-weight: 700; line-height: 1.02; letter-spacing: 0.02em; text-transform: uppercase; color: #F0F4F7; }
.vd-head em { font-style: normal; color: var(--vd-ember-lt); }
.vd-body { margin: 0 0 1.1rem; font-size: 1.17rem; line-height: 1.68; }
.vd-body strong { color: #F0F4F7; font-weight: 600; }

.vd-hero {
  position: relative;
  padding: clamp(4.5rem, 12vw, 8rem) 0 clamp(3.5rem, 9vw, 6rem);
  background:
    radial-gradient(ellipse 60% 50% at 78% 20%, rgba(224, 122, 37, 0.20), transparent 70%),
    radial-gradient(ellipse 70% 60% at 10% 90%, rgba(106, 139, 168, 0.22), transparent 70%),
    var(--vd-deep);
  border-bottom: 1px solid rgba(106, 139, 168, 0.3);
  overflow: hidden;
}
/* A navigation plot: faint grid, and one route that goes dark before it arrives. */
.vd-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(106, 139, 168, 0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(106, 139, 168, 0.10) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 75% 70% at 60% 40%, #000 30%, transparent 78%);
  mask-image: radial-gradient(ellipse 75% 70% at 60% 40%, #000 30%, transparent 78%);
  pointer-events: none;
}
.vd-hero::after {
  content: '';
  position: absolute;
  right: -4%;
  top: 28%;
  width: 62%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--vd-ember-lt) 0 22px, transparent 22px 34px);
  transform: rotate(-11deg);
  transform-origin: right center;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 45%, #000 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 45%, #000 100%);
  opacity: 0.75;
  pointer-events: none;
}
.vd-hero-stamp { display: inline-block; margin-bottom: 1.6rem; padding: 0.3rem 0.9rem; font-family: var(--us-font-label); font-size: 0.85rem; letter-spacing: 0.34em; text-transform: uppercase; color: var(--vd-ember-lt); border: 1px solid rgba(224, 122, 37, 0.5); }
.vd-hero-title { margin: 0; font-family: var(--us-font-display); font-size: clamp(3.6rem, 13vw, 8.6rem); font-weight: 700; line-height: 0.88; letter-spacing: 0.01em; text-transform: uppercase; color: #F0F4F7; }
.vd-hero-title span { display: block; color: var(--vd-ember-lt); }
.vd-hero-tagline { max-width: 38rem; margin: 1.8rem 0 2.2rem; font-size: clamp(1.2rem, 2.9vw, 1.5rem); line-height: 1.55; color: #E4E9EF; }
.vd-hero-tagline strong { color: var(--vd-ember-lt); font-weight: 600; }

.vd-btn { display: inline-block; padding: 0.7rem 1.9rem; font-family: var(--us-font-display); font-size: 1.15rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; text-decoration: none; color: var(--vd-deep); background: var(--vd-ember-lt); border: 2px solid var(--vd-ember-lt); transition: background 0.15s, color 0.15s; }
.vd-btn:hover,
.vd-btn:focus-visible { background: transparent; color: var(--vd-ember-lt); }
.vd-btn-alt { background: transparent; color: #F0F4F7; border-color: rgba(106, 139, 168, 0.6); }
.vd-btn-alt:hover,
.vd-btn-alt:focus-visible { border-color: var(--vd-ember-lt); color: var(--vd-ember-lt); }

.vd-band { padding: clamp(3.2rem, 8vw, 5.5rem) 0; border-bottom: 1px solid rgba(106, 139, 168, 0.22); }
.vd-band-slate { background: var(--vd-slate); }
.vd-split { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); gap: 3rem; align-items: start; }
.vd-log { margin: 0; padding: 1.4rem 1.5rem; font-family: var(--us-font-label); font-size: 1.08rem; line-height: 1.55; letter-spacing: 0.02em; color: #E4E9EF; background: rgba(14, 22, 32, 0.7); border: 1px solid rgba(106, 139, 168, 0.4); border-left: 4px solid var(--vd-ember-lt); }
.vd-log b { display: block; margin-bottom: 0.7rem; font-size: 0.82rem; font-weight: 500; letter-spacing: 0.3em; text-transform: uppercase; color: var(--vd-ember-lt); }
.vd-log p { margin: 0 0 0.6rem; }
.vd-log p:last-child { margin: 0; color: #fff; }

.vd-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr)); gap: 1.1rem; margin-top: 2rem; }
.vd-card { padding: 1.4rem 1.45rem 1.5rem; background: rgba(240, 244, 247, 0.04); border: 1px solid rgba(106, 139, 168, 0.32); border-top: 3px solid var(--vd-steel-lt); }
.vd-card-tag { display: block; margin-bottom: 0.55rem; font-family: var(--us-font-label); font-size: 0.85rem; letter-spacing: 0.26em; text-transform: uppercase; color: var(--vd-ember-lt); }
.vd-card-head { margin: 0 0 0.55rem; font-family: var(--us-font-display); font-size: 1.5rem; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; color: #F0F4F7; }
.vd-card-body { margin: 0; font-size: 1.04rem; line-height: 1.6; }
.vd-card-ember { border-top-color: var(--vd-ember-lt); }

.vd-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1.4rem 0 0; padding: 0; list-style: none; }
.vd-chips li { padding: 0.25rem 0.9rem; font-family: var(--us-font-label); font-size: 1.02rem; letter-spacing: 0.1em; text-transform: uppercase; color: #F0F4F7; border: 1px solid rgba(106, 139, 168, 0.5); }

.vd-books { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 1.1rem; margin-top: 2rem; }
.vd-book { display: flex; flex-direction: column; padding: 1.4rem 1.45rem; text-decoration: none; color: inherit; background: var(--vd-deep); border: 1px solid rgba(106, 139, 168, 0.32); border-left: 4px solid var(--vd-steel); transition: border-color 0.15s, transform 0.15s; }
.vd-book:hover,
.vd-book:focus-visible { border-left-color: var(--vd-ember-lt); transform: translateX(3px); }
.vd-book-kind { font-family: var(--us-font-label); font-size: 0.82rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--vd-ember-lt); }
.vd-book-title { margin: 0.35rem 0 0.55rem; font-family: var(--us-font-display); font-size: 1.6rem; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; color: #F0F4F7; }
.vd-book-body { margin: 0 0 1rem; font-size: 1rem; line-height: 1.55; }
.vd-book-more { margin-top: auto; font-family: var(--us-font-label); font-size: 0.92rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--vd-ember-lt); }

.vd-cta { padding: clamp(3.5rem, 9vw, 6rem) 0; text-align: center; background: radial-gradient(ellipse 60% 80% at 50% 0%, rgba(224, 122, 37, 0.18), transparent 70%), var(--vd-deep); }
.vd-cta-sub { max-width: 38rem; margin: 0 auto 2rem; font-size: 1.18rem; line-height: 1.62; }
.vd-cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.8rem 0.9rem; }
.vd-cta-note { margin: 1.8rem 0 0; font-family: var(--us-font-label); font-size: 0.85rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--vd-steel-lt); }

@media (max-width: 780px) {
  .vd-split { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .vd-inner { padding: 0 18px; }
}